feat(array stats and local test): stats fonksiyonu eklendi

Author: umutc

.gitignore

@@ -5,4 +5,7 @@ layer/php/vendor
 
 # mac info file
 **/.DS_Store
-**/.idea
+**/.idea
+
+# Output
+serverless-output.yaml

README.MD

@@ -5,7 +5,7 @@ The basics of using [SAM Cli][1] for AWS Lambda PHP applications.
 ## Deploy
 1. Install SAM Cli by following the [Quick Start][2]
 2. Set up your [AWS credentials][3]
-3. Create php binary by following steps in [`doc/create_php_binary.md`][4] or use [Php 7.3.1][5] or just put the yml this projects ARN 'arn:aws:lambda:eu-central-1:303814004728:layer:aws-lambda-layer-php-7-3-1:3'
+3. Create php binary by following steps in [`doc/create_php_binary.md`][4] or use [Php 7.3.1][5] or just put the yml this projects ARN 'arn:aws:lambda:eu-central-1:303814004728:layer:aws-lambda-layer-php-7-3-1:6'
 4. Write your serverless application (!) - the default is in `src/handlers/hello.php`
 5. Run `./deploy.sh` to deploy to Lambda
 
@@ -24,10 +24,14 @@ Hello world looks like:
         return ["msg" => "Hello from PHP " . PHP_VERSION];
     }
 
+## Local Tests
+Run `echo "hi" | sam local invoke "HelloPhp73"`
+Result: `{"msg":"hello from PHP 7.3.1","eventData":"hi\n","data":null}`
+
 
 [1]: https://github.com/awslabs/aws-sam-cli
 [2]: https://docs.aws.amazon.com/en_us/serverless-application-model/latest/developerguide/serverless-quick-start.html
 [3]: https://serverless.com/framework/docs/providers/aws/guide/credentials/
 [4]: doc/create_php_binary.md
 [5]: layer/php/php
-[6]: 'arn:aws:lambda:eu-central-1:303814004728:layer:aws-lambda-layer-php-7-3-1:3'
+[6]: 'arn:aws:lambda:eu-central-1:303814004728:layer:aws-lambda-layer-php-7-3-1:6'

layer/php/composer.json

@@ -1,6 +1,5 @@
 {
     "require": {
-        "umutc/array-statistics": "^1.0",
         "aws/aws-sdk-php": "^3.85"
     }
 }

layer/php/composer.lock

@@ -1,18 +1,49 @@
 AWSTemplateFormatVersion: 2010-09-09
 Description: Magistum Serverless PHP 7.3.1
 Resources:
+  ArrayStats:
+    Properties:
+      CodeUri: s3://magistum-sam/539b4fe0df7166cc04e0104df34a7449
+      Description: This is the statistics function thas calculates payload array.
+      FunctionName:
+        Fn::Sub: ${AWS::StackName}-array-stats
+      Handler: array.stats
+      Layers:
+      - Fn::Sub: arn:aws:lambda:eu-central-1:303814004728:layer:aws-lambda-layer-php-7-3-1:6
+      MemorySize: 128
+      Runtime: provided
+      Timeout: 4
+      Tracing: Active
+    Type: AWS::Serverless::Function
   HelloPhp73:
     Properties:
-      CodeUri: s3://magistum-sam/0dbcebf1080bcffc055b5d6706a137c3
+      CodeUri: s3://magistum-sam/539b4fe0df7166cc04e0104df34a7449
       Description: This is the hello world function from lambda php 7.3.1 layer
       FunctionName:
         Fn::Sub: ${AWS::StackName}-hello
       Handler: hello.hello
       Layers:
-      - Fn::Sub: arn:aws:lambda:eu-central-1:303814004728:layer:aws-lambda-layer-php-7-3-1:3
+      - Fn::Sub: arn:aws:lambda:eu-central-1:303814004728:layer:aws-lambda-layer-php-7-3-1:6
+      MemorySize: 128
+      Runtime: provided
+      Timeout: 4
+      Tracing: Active
+    Type: AWS::Serverless::Function
+  Info:
+    Properties:
+      CodeUri: s3://magistum-sam/539b4fe0df7166cc04e0104df34a7449
+      Description: This is the statistics function thas calculates payload array.
+      FunctionName:
+        Fn::Sub: ${AWS::StackName}-info
+      Handler: array.info
+      Layers:
+      - Fn::Sub: arn:aws:lambda:eu-central-1:303814004728:layer:aws-lambda-layer-php-7-3-1:6
       MemorySize: 128
+      Policies:
+      - S3ReadPolicy:
+          BucketName: magistum-sam
       Runtime: provided
-      Timeout: 30
+      Timeout: 4
       Tracing: Active
     Type: AWS::Serverless::Function
 Transform: AWS::Serverless-2016-10-31

serverless-output.yaml

@@ -0,0 +1,63 @@
+<?php
+
+require_once __DIR__ . '/lib/ArrayStats.php';
+
+use ArrayStatistics\ArrayStats;
+use \ArrayStatistics\GraphItem;
+
+
+function stats($eventData): array
+{
+    $data = json_decode($eventData);
+    $response = [];
+    try {
+        foreach ($data->points as $key => $point) {
+            $arrayStats = new ArrayStats($point->results);
+            $data->points[$key]->stats = (object)[
+                "_min" => $data->min,
+                "_max" => $data->max,
+                "mean" => $arrayStats->mean(),
+                "median" => $arrayStats->median(),
+                "mode" => $arrayStats->mode(),
+                "range" => $arrayStats->range(),
+                "standard_deviation" => $arrayStats->standard_deviation(),
+                "frequency" => $arrayStats->frequency(),
+                "min" => $arrayStats->min(),
+                "max" => $arrayStats->max(),
+                "maxGraphDataValue" => 0,
+                "graphData" => $arrayStats->graphData($data->min, $data->max),
+            ];
+            $maxGraphDataValue = max(array_map(function(GraphItem $item) {
+                return $item->getValue();
+            }, $data->points[$key]->stats->graphData));
+            $data->points[$key]->stats->maxGraphDataValue = $maxGraphDataValue;
+
+            $x = null;
+            if ($maxGraphDataValue <= 0.0001) $x = 10000;
+            elseif ($maxGraphDataValue <= 0.001) $x = 1000;
+            elseif ($maxGraphDataValue <= 0.01) $x = 100;
+            elseif ($maxGraphDataValue <= 0.1) $x = 10;
+
+            if ($x) {
+                foreach ($data->points[$key]->stats->graphData as $item) {
+                    $item->multiplyValue($x);
+                }
+            }
+            unset($data->points[$key]->results);
+            unset($stats);
+        }
+        $response = $data->points;
+        unset($data);
+    } catch (Exception $e) {
+    }
+    return $response;
+}
+
+function info($eventData): array
+{
+    $response = [
+        'PHP_VERSION' => PHP_VERSION,
+        '__DIR__' => __DIR__,
+    ];
+    return $response;
+}

src/array.php

@@ -3,7 +3,6 @@ function hello($eventData) : array
 {
     $response = ['msg' => 'hello from PHP '.PHP_VERSION];
     $response['eventData'] = $eventData;
-    $data = json_decode($eventData);
-    $response['data'] = $data;
+    $response['data'] = json_decode($eventData);
     return $response;
 }